China Factory Direct
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| CAS number | 760-78-1 |
| Product name | DL-Norvaline |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral drug synthesis intermediates | Chemical synthesis or biocatalysis |
| Biochemistry | Protein structure studies and enzyme substrate mimics | Laboratory-scale synthesis and purification |
| Food | Nutritional supplements or specialized dietary ingredients | Fermentation or chemical synthesis |
| Research | Biological reagents or reference standards for analytical testing | Fine chemical processing |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (DL-Norvaline Content) | Acid-Base Titration with NaOH | Quantitative neutralization of the carboxylic acid group using standardized sodium hydroxide solution and potentiometric or visual endpoint detection. |
| Optical Rotation | Polarimetry | Measurement of the rotation of plane-polarized light caused by chiral molecules in solution, used to confirm identity and enantiomeric composition. |
| Specific Optical Rotation | Polarimetry | Calculation of optical rotation normalized to concentration and path length to verify compliance with reference standards. |
| Loss on Drying | Gravimetric Analysis (Thermogravimetry) | Determination of volatile content by measuring mass loss after drying at specified temperature and time under controlled conditions. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Measurement of non-volatile inorganic residue remaining after high-temperature incineration of the sample. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals by atomization and absorption measurement at characteristic wavelengths after wet digestion. |
| Chloride (Cl-) | Potentiometric Titration with AgNO3 | Titration with silver nitrate using a silver indicator electrode to detect endpoint based on formation of AgCl precipitate. |
| Sulfate (SO42-) | Turbidimetric Analysis | Formation of barium sulfate precipitate in acidic medium; quantification via light scattering measurement. |
| Related Substances | HPLC with UV Detection | Separation of impurities using reversed-phase chromatography and detection at 200–220 nm based on UV absorbance differences. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine generated in situ to react stoichiometrically with water in anhydrous methanol-based solvent. |
| pH (1% aqueous solution) | pH Potentiometry | Measurement of hydrogen ion activity in a standardized aqueous solution using calibrated glass electrode system. |
| Microbial Contamination | Membrane Filtration and Colony Counting | Quantitative determination of aerobic microorganisms by filtration, membrane transfer to agar media, and incubation followed by colony enumeration. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 278-282°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Optical Rotation | -0.5° to +0.5° (c=1, H2O) |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.